1
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S S, Sam S, Girish Kumar K. Polyethyleneimine capped silver nanoclusters based turn-off-on fluorescence sensor for the determination of glutathione. Talanta 2024; 278:126541. [PMID: 39018760 DOI: 10.1016/j.talanta.2024.126541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/22/2024] [Accepted: 07/09/2024] [Indexed: 07/19/2024]
Abstract
A polyethyleneimine capped silver nanoclusters (PEI-AgNCs) based turn-off-on fluorescence sensor has been developed to determine glutathione (GSH) effectively. The fluorescence intensity of silver nanoclusters (AgNCs) has been quenched by Cu(II) and recovered by adding GSH. The quenching of fluorescence intensity of PEI-AgNCs by Cu(II) and recovery of the emission intensity of PEI-AgNCs after the addition of GSH is supposed to be ground state adduct formation. Due to the greater affinity of Cu(II) towards GSH compared to that to PEI-AgNCs, the defragmentation of PEI-AgNCs-Cu(II) adduct occurs after the addition of GSH to the solution, resulting in the recovery of emission intensity of PEI-AgNCs. Characterisation studies of the probe have been done using FT-IR spectroscopy, XPS analysis, XRD analysis, UV-visible and Fluorescence spectrophotometry, EDX spectroscopy and TEM analysis. Different experimental parameters were optimised. Under optimised analytical conditions, the sensor showed a wide linear range for the quantification of GSH from 1.00 × 10-4 M to 3.00 × 10-6 M with a detection limit (LOD) of 8.00 × 10-7 M. Selectivity and interference studies were done in the presence of different structurally similar and coexisting species of GSH in blood. The practical utility of the proposed sensor has been validated in artificial blood serum.
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Affiliation(s)
- Swathy S
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022, Kerala, India
| | - Sonia Sam
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022, Kerala, India
| | - K Girish Kumar
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022, Kerala, India.
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2
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Zhao CX, Li XX, Shu Y. Fluorescence of europium activated by molecular-like silver clusters for the detection of alkaline phosphatase activity. Talanta 2024; 281:126892. [PMID: 39298805 DOI: 10.1016/j.talanta.2024.126892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/31/2024] [Accepted: 09/13/2024] [Indexed: 09/22/2024]
Abstract
Alkaline phosphatase (ALP) is abnormally expressed in some cancers and promotes the growth, metastasis, and invasion of cancer cells. The detection of ALP is of great significance for both pathological study and clinical detection. In this work, a europium (Eu)-based fluorescence detection sensor was prepared in a mild reaction condition. LaF3:Eu nanoparticles was mixed with ethylene imine polymer (PEI) and Ag+ ions. PEI was used as stabilizer and reducing agent, and Ag+ ions were reduced as molecular-like silver clusters (ML-Ag NCs). The fluorescence of LaF3:Eu nanoparticles was enhanced by ML-Ag NCs through energy transfer. When ascorbic acid 2-phosphate (AAP) was hydrolyzed to ascorbic acid (AA) in the presence of ALP, AA reduced Ag+ ions to silver nanoparticles (Ag NPs) and quenched the fluorescence of LaF3:Eu/PEI/Ag. The activity of ALP was detected by measuring the fluorescence intensity of Eu3+ at 618 nm. In the concentration range from 2.0 to 16.0 U/L, the fluorescence intensity ratio ((F0-F)/F0) had a linear relationship with the logarithm of ALP concentration. The limit of detection (LOD) was 1.3 U/L. Moreover, the ALP activity was detected successfully in cancer cells by this method. The sensing platform has application potential in the detection of ALP activity in biological systems.
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Affiliation(s)
- Chen-Xi Zhao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Xiao-Xia Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Yang Shu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, China.
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3
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Pathak A, Verma N, Tripathi S, Mishra A, Poluri KM. Nanosensor based approaches for quantitative detection of heparin. Talanta 2024; 273:125873. [PMID: 38460425 DOI: 10.1016/j.talanta.2024.125873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/23/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
Heparin, being a widely employed anticoagulant in numerus clinical complications, requires strict quantification and qualitative screening to ensure the safety of patients from potential threat of thrombocytopenia. However, the intricacy of heparin's chemical structures and low abundance hinders the precise monitoring of its level and quality in clinical settings. Conventional laboratory assays have limitations in sensitivity and specificity, necessitating the development of innovative approaches. In this context, nanosensors emerged as a promising solution due to enhanced sensitivity, selectivity, and ability to detect heparin even at low concentrations. This review delves into a range of sensing approaches including colorimetric, fluorometric, surface-enhanced Raman spectroscopy, and electrochemical techniques using different types of nanomaterials, thus providing insights of its principles, capabilities, and limitations. Moreover, integration of smart-phone with nanosensors for point of care diagnostics has also been explored. Additionally, recent advances in nanopore technologies, artificial intelligence (AI) and machine learning (ML) have been discussed offering specificity against contaminants present in heparin to ensure its quality. By consolidating current knowledge and highlighting the potential of nanosensors, this review aims to contribute to the advancement of efficient, reliable, and economical heparin detection methods providing improved patient care.
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Affiliation(s)
- Aakanksha Pathak
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Nishchay Verma
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Shweta Tripathi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur, 342011, Rajasthan, India
| | - Krishna Mohan Poluri
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
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4
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Huo Z, Lv Y, Wang N, Zhou C, Su X. Construction of a dual-signal readout platform for effective glutathione S-transferase sensing based on polyethyleneimine-capped silver nanoclusters and cobalt-manganese oxide nanosheets with oxidase-mimicking activity. Mikrochim Acta 2024; 191:282. [PMID: 38652326 DOI: 10.1007/s00604-024-06363-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
A novel dual-mode fluorometric and colorimetric sensing platform is reported for determining glutathione S-transferase (GST) by utilizing polyethyleneimine-capped silver nanoclusters (PEI-AgNCs) and cobalt-manganese oxide nanosheets (CoMn-ONSs) with oxidase-like activity. Abundant active oxygen species (O2•-) can be produced through the CoMn-ONSs interacting with dissolved oxygen. Afterward, the pink oxDPD was generated through the oxidation of colorless N,N-diethyl-p-phenylenediamine (DPD) by O2•-, and two absorption peaks at 510 and 551 nm could be observed. Simultaneously, oxDPD could quench the fluorescence of PEI-AgNCs at 504 nm via the inner filter effect (IFE). However, in the presence of glutathione (GSH), GSH prevents the oxidation of DPD due to the reducibility of GSH, leading to the absorbance decrease at 510 and 551 nm. Furthermore, the fluorescence at 504 nm was restored due to the quenching effect of oxDPD on decreased PEI-AgNCs. Under the catalysis of GST, GSH and1-chloro-2,4-dinitrobenzo (CDNB) conjugate to generate an adduct, initiating the occurrence of the oxidation of the chromogenic substrate DPD, thereby inducing a distinct colorimetric response again and the significant quenching of PEI-AgNCs. The detection limits for GST determination were 0.04 and 0.21 U/L for fluorometric and colorimetric modes, respectively. The sensing platform illustrated reliable applicability in detecting GST in real samples.
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Affiliation(s)
- Zejiao Huo
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Yuntai Lv
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Nan Wang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Chenyu Zhou
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Xingguang Su
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China.
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5
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Tian R, Chen J, Li D, Sun X, Ma H. Preparation of chitosan/SiO 2 coated silver nanoclusters and its application in enhanced fluorescence detection of berberine hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123417. [PMID: 37774585 DOI: 10.1016/j.saa.2023.123417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/10/2023] [Accepted: 09/13/2023] [Indexed: 10/01/2023]
Abstract
Although the synthesis and applications of the metal nanoclusters and silica coated metal noclusters were widely explored, however, the fluorescence sensing application of silica coated metal nanoclusters are still challenges. In this work, the composite nanoparticles (PEI-Ag NCs/CSNPs) were synthesized by coating polyethyleneimine capped silver nanoclusters (PEI-Ag NCs) with chitosan/silica through a reverse microemulsion method, and then used for fluorescence enhancement detection of berberine hydrochloride (BRH). UV-vis absorption spectra, fluorescence spectra, IR spectra, transmission electron microscope (TEM) and X-ray Photoelectron Spectroscopy (XPS) technique were used to reveal the possible binding relationship between PEI-AgNCs and chitosan/silica and fluorescence sensing mechanism of PEI-Ag NCs/CSNPs to BRH. The results showed that PEI-Ag NCs/CSNPs possess better sensing ability as compared to the free PEI- Ag NCs and can be successfully applied to evaluate the BRH content in actual medicine.
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Affiliation(s)
- Rui Tian
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shannxi 716000, PR China.
| | - Junyu Chen
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shannxi 716000, PR China
| | - Duo Li
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shannxi 716000, PR China
| | - Xuehua Sun
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shannxi 716000, PR China
| | - Hongyan Ma
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shannxi 716000, PR China
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6
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Cai Z, Wu L, Xi J, Hao E, Qi K. Green and facile synthesis of polyethyleneimine-protected fluorescent silver nanoclusters for the highly specific biosensing of curcumin. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126228] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Gong LJ, Li YF, Zou HY, Huang CZ. Resonance light scattering technique for sensitive detection of heparin using plasmonic Cu2-xSe nanoparticles. Talanta 2020; 216:120967. [DOI: 10.1016/j.talanta.2020.120967] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 11/16/2022]
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8
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Hsu CC, Chao YY, Wang SW, Chen YL. Polyethylenimine-capped silver nanoclusters as fluorescent sensors for the rapid detection of ellagic acid in cosmetics. Talanta 2019; 204:484-490. [DOI: 10.1016/j.talanta.2019.06.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/09/2019] [Accepted: 06/10/2019] [Indexed: 12/23/2022]
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9
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Pourreza N, Ghomi M. Hydrogel based aptasensor for thrombin sensing by Resonance Rayleigh Scattering. Anal Chim Acta 2019; 1079:180-191. [PMID: 31387709 DOI: 10.1016/j.aca.2019.06.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/02/2019] [Accepted: 06/22/2019] [Indexed: 12/12/2022]
Abstract
In this research, a novel Resonance Rayleigh Scattering (RRS) aptasensor was developed for thrombin monitoring using in-situ synthesized and embedded Au nanoparticles (AuNPs) into poly vinyl alcohol -borax hydrogel (PBH). Thiolated-thrombin binding aptamer (thiolated-TBA) was attached to the surface of AuNPs embedded into PBH to design the PBH-aptasensor for thrombin detection (thiolated-TBA@AuNPs-PBH). To verify the characteristic and morphology of PBH nanocomposite, energy dispersive X-ray analysis, TEM, average particle size analizer and UV-Vis spectra were performed. The difference in RRS intensities in the absence and presence of thrombin was calculated and selected as the monitoring signal. Effect of different parameters on the RRS signal was investigated at excitation wavelength of 500 nm. Under the approved conditions, the linear detection range was validated over the concentration of 0.70 pM- 0.02 μM. The limit of detection based on 3Sb was 0.10 pM. The relative standard deviation for 5.6 pM and 3.6 nM were 4.0 and 2.7% (n = 10), respectively. The proposed aptasensor was successfully applied as an experimental model for thrombin detection in serum samples of healthy volunteers with acceptable results.
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Affiliation(s)
- Nahid Pourreza
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Matineh Ghomi
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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10
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Aparna RS, Anjali Devi JS, Anjana RR, Nebu J, George S. Reversible fluorescence modulation of BSA stabilised copper nanoclusters for the selective detection of protamine and heparin. Analyst 2019; 144:1799-1808. [DOI: 10.1039/c8an01703d] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Depicting fluorescence sensing of protamine and heparin based on aggregation and disaggregation of copper nanoclusters.
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Affiliation(s)
- R. S. Aparna
- Department of Chemistry
- School of Physical and Mathematical Sciences
- University of Kerala
- Kariavattom Campus
- Thiruvananthapuram-695581
| | - J. S. Anjali Devi
- Department of Chemistry
- School of Physical and Mathematical Sciences
- University of Kerala
- Kariavattom Campus
- Thiruvananthapuram-695581
| | - R. R. Anjana
- Department of Chemistry
- School of Physical and Mathematical Sciences
- University of Kerala
- Kariavattom Campus
- Thiruvananthapuram-695581
| | - John Nebu
- Department of Chemistry
- School of Physical and Mathematical Sciences
- University of Kerala
- Kariavattom Campus
- Thiruvananthapuram-695581
| | - Sony George
- Department of Chemistry
- School of Physical and Mathematical Sciences
- University of Kerala
- Kariavattom Campus
- Thiruvananthapuram-695581
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11
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Sohail MF, Hussain SZ, Saeed H, Javed I, Sarwar HS, Nadhman A, Huma ZE, Rehman M, Jahan S, Hussain I, Shahnaz G. Polymeric nanocapsules embedded with ultra-small silver nanoclusters for synergistic pharmacology and improved oral delivery of Docetaxel. Sci Rep 2018; 8:13304. [PMID: 30190588 PMCID: PMC6127092 DOI: 10.1038/s41598-018-30749-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 07/25/2018] [Indexed: 12/25/2022] Open
Abstract
Despite of the remarkable cytotoxic and imaging potential of ultra-small metal nanoclusters, their toxicity-free and targeted delivery to cancerous cells remains a substantial challenge that hinders their clinical applications. In this study, a polymeric scaffold was first synthesized by grafting folic acid and thiol groups to chitosan (CS) for cancer cell targeting and improved gastric permeation. Furthermore, silver nanocluster (Ag NCs) were synthesized in situ, within CS scaffold by microwave irradiation and core-shell nanocapsules (NCPs) were prepared with hydrophobic docetaxel (DTX) in the core and Ag NCs embedded CS in the shell. A significant cytotoxicity synergism (~300 folds) was observed for DTX with co-delivery of Ag NCs against breast cancer MDA-MB-231 cells. Following oral administration, the DTX-Ag-NCPs increased bioavailability due to enhanced drug transport across gut (9 times), circulation half-life (~6.8 times) and mean residence time (~6.7 times), as compared to the control DTX suspension. Moreover, 14 days acute oral toxicity of the DTX-Ag-NCPs was performed in mice and evaluated for changes in blood biochemistry parameters, organ to body weight index and histopathology of liver and kidney tissues that revealed no significant evidence of toxicity suggesting the safety and efficiency of the DTX-Ag-NCPs as hybrid nanocarrier for biocompatible delivery of metal nanoclusters.
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Affiliation(s)
- Muhammad Farhan Sohail
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
- Department of Chemistry and Chemical Engineering, SBA School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, 54792, Pakistan
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Syed Zajif Hussain
- Department of Chemistry and Chemical Engineering, SBA School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, 54792, Pakistan
| | - Hamid Saeed
- University College of Pharmacy, University of the Punjab, Allama Iqbal Campus, Lahore, Pakistan
| | - Ibrahim Javed
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia
| | - Hafiz Shoaib Sarwar
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
- Department of Pathology, Ohio State University Medical Center, Columbus, OH, USA
| | - Akhtar Nadhman
- Institute of Integrative Biosciences, CECOS University, Phase VI, Hayatabad, Peshawar, Pakistan
| | - Zil-E- Huma
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Mubashar Rehman
- Department of Pharmacy, University of Lahore - Gujrat Campus, Gujrat, 50700, Pakistan
| | - Sarwat Jahan
- Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Irshad Hussain
- Department of Chemistry and Chemical Engineering, SBA School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, 54792, Pakistan.
- US-Pakistan Center for Advanced Studies in Energy (USPCAS-E), University of Engineering & Technology (UET), Peshawar, Pakistan.
| | - Gul Shahnaz
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
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12
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Ma L, Zhang M, Yang A, Wang Q, Qu F, Qu F, Kong RM. Sensitive fluorescence detection of heparin based on self-assembly of mesoporous silica nanoparticle–gold nanoclusters with emission enhancement characteristics. Analyst 2018; 143:5388-5394. [PMID: 30295305 DOI: 10.1039/c8an01556b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Sensitive fluorescence detection of heparin based on self-assembly of mesoporous silica nanoparticle–gold nanoclusters with emission enhancement characteristics was reported.
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Affiliation(s)
- Lin Ma
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- P. R. China
| | - Mengyue Zhang
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- P. R. China
| | - Aijun Yang
- Center for Reproductive medicine
- Affiliated Hospital of Jining Medical University
- Jining
- P. R. China
| | - Qin Wang
- Center for Reproductive medicine
- Affiliated Hospital of Jining Medical University
- Jining
- P. R. China
| | - Fei Qu
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- P. R. China
| | - Fengli Qu
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- P. R. China
| | - Rong-Mei Kong
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- P. R. China
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13
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Tan X, Yang J, Yang Q, Li Q. A highly sensitive resonance Rayleigh scattering and colorimetric assay for the recognition of propranolol in β‐adrenergic blocker. LUMINESCENCE 2017; 32:1221-1226. [DOI: 10.1002/bio.3314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 01/19/2017] [Accepted: 02/15/2017] [Indexed: 12/25/2022]
Affiliation(s)
| | - Jidong Yang
- Chongqing Three Gorges University Wanzhou China
- School of Chemistry and Chemical Engineering Yangtze Normal University Chongqing China
- School of Chemistry and Chemical Engineering Southwest University Chongqing China
| | - Qiong Yang
- School of Chemistry and Chemical Engineering Yangtze Normal University Chongqing China
| | - Qin Li
- Chongqing Medical and Health school Fuling China
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14
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Qu F, Chen P, Zhu S, You J. High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:449-453. [PMID: 27579789 DOI: 10.1016/j.saa.2016.08.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/20/2016] [Accepted: 08/20/2016] [Indexed: 06/06/2023]
Abstract
Ag nanoclusters (Ag NCs) templated by hyperbranched polyethyleneimine (PEI) with different terminal groups and molecular weights had been developed as a special optical sensor for detecting p-nitrophenol (p-NP). When adding p-NP into Ag NCs, an obvious color change from pale yellow to deep yellow could be observed by naked eyes, accompanying with an apparent red-shift of absorption peak, and the reason was attributed to the formation of oxygen anion of p-NP based on the transfer of H+ from p-NP to amine groups of PEI. The molecular weights of template would greatly affect the sensitivity of p-NP. Ag NCs capped by PEI terminated ethylenediamine (EDA) possessed better sensitivity than other Ag NCs, showing good linear range from 5 to 140μM with the limit of detection as low as 1.28μM. Most importantly, this present system displayed high selectivity toward p-NP even in the presence of other nitrophenols and nitrotoluenes. This reliable method had been successfully applied for the detection of p-NP in real water and soil samples.
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Affiliation(s)
- Fei Qu
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Ping Chen
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China
| | - Shuyun Zhu
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China
| | - Jinmao You
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China; Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China.
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15
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Lan J, Zou HY, Wang Q, Zeng P, Li YF, Huang CZ. Sensitive and selective turn off-on fluorescence detection of heparin based on the energy transfer platform using the BSA-stabilized Au nanoclusters/amino-functionalized graphene oxide hybrids. Talanta 2016; 161:482-488. [DOI: 10.1016/j.talanta.2016.08.081] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/22/2016] [Accepted: 08/30/2016] [Indexed: 12/27/2022]
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16
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Study on the interaction between three benzimidazole anthelmintics and eosin Y by high performance liquid chromatography associating with resonance light scattering and its application. Anal Bioanal Chem 2016; 408:5247-59. [DOI: 10.1007/s00216-016-9619-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/14/2016] [Accepted: 05/04/2016] [Indexed: 12/28/2022]
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17
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Qu F, Niu S, You J. Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents. J Appl Polym Sci 2016. [DOI: 10.1002/app.43206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fei Qu
- Key Laboratory of Life-Organic Analysis; Qufu Normal University; Qufu 273165 Shandong China
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; Qufu Normal University; Qufu 273165 Shandong China
| | - Shuwen Niu
- Key Laboratory of Life-Organic Analysis; Qufu Normal University; Qufu 273165 Shandong China
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; Qufu Normal University; Qufu 273165 Shandong China
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis; Qufu Normal University; Qufu 273165 Shandong China
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; Qufu Normal University; Qufu 273165 Shandong China
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences; Xining 810001 China
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18
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Tian L, Hu X, Liu Z, Liu S. Studies on the interaction of heparin with lysozyme by multi-spectroscopic techniques and atomic force microscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 154:27-32. [PMID: 26505285 DOI: 10.1016/j.saa.2015.09.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 08/01/2015] [Accepted: 09/27/2015] [Indexed: 06/05/2023]
Abstract
The interaction between heparin (Hep) and lysozyme (Lyso) in vitro was studied by fluorescence, UV-vis, circular dichroism (CD), resonance Rayleigh scattering (RRS) spectroscopy and atomic force microscopy (AFM) under normal physiological conditions. UV-vis spectra of Lyso showed the absorbance was significantly increased with the addition of Hep. Fluorescence studies revealed that the emission quenching of Lyso with Hep was initiated by static quenching mechanism. CD spectral studies showed that Hep induced conformational changes in the secondary structure of Lyso. RRS spectra of Lyso showed the intensity of scattering was significantly increased with the addition of Hep and the enhanced RRS intensities were proportional to the concentration of Hep in a certain range. Thus, a new RRS method using Lyso as a probe could be used for the determination of Hep. The detection limit for Hep was 3.9 ng mL(-1). In addition, the shape of the complex was characterized by AFM. The possible reaction mechanism and the reasons for the enhancement of RRS intensity had been discussed through experimental results.
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Affiliation(s)
- Lunfu Tian
- Institute of Mechanical Manufacturing Technology, Chinese Academy of Engineering Physics, Mianyang 621900, China; Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhongfang Liu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Qu F, Zou X, Kong R, You J. A tunable pH-sensing system based on Ag nanoclusters capped by hyperbranched polyethyleneimine with different molecular weights. Talanta 2016; 146:549-55. [DOI: 10.1016/j.talanta.2015.09.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/07/2015] [Accepted: 09/10/2015] [Indexed: 10/23/2022]
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Lan J, Zou H, Liu Z, Gao M, Chen B, Li Y, Huang C. A visual physiological temperature sensor developed with gelatin-stabilized luminescent silver nanoclusters. Talanta 2015; 143:469-473. [DOI: 10.1016/j.talanta.2015.05.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/15/2015] [Accepted: 05/18/2015] [Indexed: 01/11/2023]
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Yang J, Tan X, Zhang X, Yang Q, Shen Y. Cu²⁺ functionalized N-acetyl-L-cysteine capped CdTe quantum dots as a novel resonance Rayleigh scattering probe for the recognition of phenylalanine enantiomers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:591-597. [PMID: 26163781 DOI: 10.1016/j.saa.2015.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/27/2015] [Accepted: 07/01/2015] [Indexed: 06/04/2023]
Abstract
A simple protocol that can be used to simultaneously determinate enantiomers is extremely intriguing and useful. In this study, we proposed a low-cost, facile, sensitive method for simultaneous determination. The molecular recognition of Cu(2+) functionalized N-acetyl-l-cysteine capped CdTe quantum dots (Cu(2+)-NALC/CdTe QDs) with phenylalanine (PA) enantiomers was investigated based on the resonance Rayleigh scattering (RRS) spectral technique. The RRS intensity of NALC/CdTe QDs is very weak, but Cu(2+) functionalized NALC/CdTe QDs have extremely high RRS intensity, the most important observations are that PA could quench the RRS intensity of Cu(2+)-NALC/CdTe QDs, and that l-PA and d-PA have different degree of influence. In addition, those experimental factors such as acidity, concentration of Cu(2+) and reaction time were investigated in regards to their effects on enantioselective interaction. Finally, the applicability of the chiral recognized sensor for the analysis of chiral mixtures on enantiomers has been demonstrated, and the results that were obtained high precision (<4.63%) and low error (<3.06%).
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Affiliation(s)
- Jidong Yang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; School of Chemistry and Environmental Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404000, China.
| | - Xuanping Tan
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoning Zhang
- Department of Mathematics, Sciences & Technology, Paine College, 1235 Fifteenth Street, Augusta, GA 30901, United Sates
| | - Qiong Yang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, Fuling 408100, China
| | - Yizhong Shen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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22
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Yan S, Tang Y, Yu M. Resonance Rayleigh scattering detection of heparin with concanavalin A. RSC Adv 2015. [DOI: 10.1039/c5ra11700c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Stepwise macromolecular interactions observed between conA and heparin, which are accompanied by RRS changes.
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Affiliation(s)
- Shuguang Yan
- College of Energy Resources
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Yurong Tang
- College of Material and Chemistry & Chemical Engineering
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Mengling Yu
- College of Material and Chemistry & Chemical Engineering
- Chengdu University of Technology
- Chengdu 610059
- China
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Yan S, Zhang L, Tang Y, Lv Y. Synthesis of water-soluble Ag2Se QDs as a novel resonance Rayleigh scattering sensor for highly sensitive and selective ConA detection. Analyst 2014; 139:4210-5. [DOI: 10.1039/c4an00579a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Schematic illustration for fabricating TGA and glycine modified Ag2Se QDs for RRS detection of ConA.
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Affiliation(s)
- Shuguang Yan
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu, China
| | - Lichun Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu, China
| | - Yurong Tang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu, China
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu, China
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